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The modulus of (3 + 4i)4 is _____. 5 20 125 625
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The modulus of (3 + 4i)4 is _____. 5 20 125 625
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May 9, 2019
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The modulus of (3 + 4i)4 is _____.
5
20
125
625
Mathematics
high-school
Steinbock
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1
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(3+4i)*4 = 3*4+4i*4 = 12+16i
The complex number 12+16i is in the form a+bi where a = 12 and b = 16
m = modulus
m = distance from (0,0) to (a,b)
m = sqrt(a^2+b^2)
m = sqrt(12^2+16^2)
m = sqrt(144+256)
m = sqrt(400)
m =
20
Answer: 20
Will Fitzgerald
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May 14, 2019
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Will Fitzgerald
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